Oklahoma City Labor's Daily (Oklahoma City, Okla.), Vol. 1, No. 131, Ed. 1 Thursday, May 17, 1956, newspaper, May 17, 1956; (https://gateway.okhistory.org/ark:/67531/metadc2194270/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .